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G. A. MARSH.

COPY HOLDER. APPLICATION FILED N0v.7,1914.

1 1 9%,806, Patented Aug. 8, 1916.

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COPY HOLDER.

APPLICATION HLED NOV; 7. 1914 1,1 9%,306. PatntedAug. 8,1916.

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COPY HOLDER.

' APPLICATION FILED NOV- 7.1914.

Patented Aug. 8, 1916.

8 SHEETS-SHEET 3- WTTEU %TATE% PATENT UFFTQE.

GEORGE A. MARSH, OF NORFOLK, VIRGINIA, ASSIGNOR 'IO SPECIALTY MANUFAC- TURING-SALES CORPORATION, OF NORFOLK, VIRGINIA, A CORPORATION OF VIR- GINIA.

COPY-HOLDER.

Specification of Letters Patent.

Patented Aug. 8, 1916.

To all whom it may concern:

Be it known that I, GEORGE A. MARSH, a citizen of the United States, residing at Norfolk, in the county of Norfolk and State of Virginia, have invented certain new and useful Improvements in Copy-Holders; and 1 do hereby declare the following to be a full, clear, and exact description of the same, reference being had to the accompanying drawings, forming part of this specification, and to the figures and letters of reference marked thereon.

This invention relates to improvements in copy-holders, and particularly in the type which provides means for moving the copy step-by-step for a predetermined distance by the depression of a key which actuates means for gripping the copy at one point and releasing it at another to feed the copy through said predetermined distance.

The form of copy-holder to which the present improvements are particularly applicable, comprises a main frame having copy clamping means for maintaining the copy stationary, and a swinging frame provided with reciprocatory copy clamping means, the copy being moved upon the depression of a key which acts to release the clamping means upon the main frame and at the same time causes the clamping means upon the swinging frame to grip the copy.

Among the objects of the invention is the provision of means for accurately determining the distance of travel of the copy when the key is depressed, and adjusting said distance to correspond with differently spaced lines, it being well known that the spacing of lines in copy is by no means uniform. This result is attained by the provision of an improved stop for limiting the movement of the copy feeding mechanism, said stop being adjustable to a plurality of predetermined positions, the distances be tween which may correspond to the different spacings of lines upon a typewriter, and also adjustable into positions intermediate said predetermined positions. In this way, unlimited adjustment within the range of movement of the copy feeding mechanism is obtained.

The invention also provides means for equalizing the pressure of the clamping means upon copy at all points, and for accurately adjusting said pressure should it at any time become unequal. It is of considerable importance that the copy be gripped with equal pressure at every point during the feeding thereof, for the reason that uneven pressure is extremely liable to cause the copy to slip and become disarranged, thus destroying alinement of the lines, and preventing effective feeding.

A full understanding of the nature and objects of the invention will be obtained from the ensuing description, taken in connection with the accompanying drawings illustrating the several features thereof in a preferred form, and specifically pointed out in the claims.

In the drawings :'Figure 1 is a perspective view of the improved copy-holder; Fig. 2 is an end elevation showing the parts in their normal position; Fig. 3 is an end elevation showing the parts in position to receive the copy; Fig. 4 is an end elevation illustrating the movement of the parts when the key is depressed; Fig. 5 is a transverse section; and Fig. 6 is an enlarged plan of the improved stop for regulating the distance of travel of the copy feeding means.

Referring to the drawings, the several parts are supported upon a main frame consisting, in the present instance, of forked pedestals 1 and 2 joined by a back plate 3. Joining the forwardly extending forks 1 of thepedestals, is astationary bar 5, hereinafter termed an indicator bar. This bar is preferably disposed at an angle to correspond with the general direction of movement of the copy, and has the upper portion of its outer face beveled to provide a sharp edge 6 for convenience in setting the copy, and a felt strip 7 on its inner face, for a purpose whichwill presently appear. Suitable slidable indicators 8 may be provided for convenience in transcribing. The upper portions of the forks 4 are provided on their outer sides with circular bosses 9 having recesses to provide bearings for a longitudinal rock shaft 10, and apertures through which the spacing keys 11 and 12 are attached to the shaft by means of screws or pins 13. As shown, the spacing keys may be connected by a key bar 14. The rearwardly extending forks 15 of the ped estals are apertured to receive screws or pins 16 which form the fulcrum points of a swinging frame.

The swinging frame consists of two plates 17 of similar configuration, except as to their lower bends. Each plate is provided with slots 20, 21, and with rearwardly extending arms 22, having openings 23 for the reception of the upper ends of springs 24. The 5 lower ends of the plates 17 are bent inwardly to form keys 25, 26. Connecting the upper ends of the plates 17 is a rod 27, and the forward portions of the plates are connected by a roller bar 28. This bar is pressed against the felt strip 7, carried by the ind1- cator bar 5, by the action of the springs 24, which are secured at their lower ends to the pedestals at 29, and, together with the indicator bar, forms a fixed clamping means for gripping the copy, when the parts of the holder are in normal position (see Fig. 2), that it to say, when a line is. being copied by the operator, and before the step-by-step, or shifting movement of the copy takes place. 7 I

Mounted within the swinging frame 17 is a sliding frame. This consists ofend memhere 30 which slide within the slots 20, 21, in theplate 17. Pivotally mounted on the i sliding end members 30, are levers 32, which rock with a shaft 33, said levers being connected at their rear extremities to the spacing keys, 1 1, 12, by means of links 35, at least one of which, in the form shown, comprisesa sort of turnbuckle arrangement, for purposes which will hereinafter appear.

Connecting the forward ends of the levers 32 is a presser bar 36, which forms the movable member of the reciprocatory copy 3? clamping means. The other member comprises a longitudinally extending platen bar 37, preferably L-shaped in cross section, and mounted on extensions 38 of the end members 30. This platen bar is stationary with '40 respect to the sliding frame, but is capable of sliding, and pivotal movement therewith. The outer face of the platen-bar is. preferably provided with a felt or other resilient m strip 39 and the inner edge of the presserbar 36 may be knurled or milled to provide gripping surfaces for the copy. The two bars are maintained in normally spaced relation by means of coil springs 40, wound upon the shaft 33. The upper ends of these springs are secured to inwardly extending lugs 41 carried by the levers 32 and their lower ends are secured to the platen-bar 37, as shown in Fig. 5. The lugs 41 also carry buffers 42, which act to reduce the jar upon the end members 30, incident to releasing of the key-bar 14. To guide them within the slots 21, the lower portions of th 6n inembers 30 are bent inwardly as shown at 43, the shaft 33, serving to guide the upper ends of said members within the slots 20.

The invention provides means for accurately adjusting the range of movement of the reciprocatory copy feeding mechanism, not only as to predetermined distances of travel, but also as to distances intermediate the predetermined distances, in order to obtain as perfect an adjustment as possible. For this purpose, a bell crank lever 44 is pivotally mounted on the back plate 3 of the main frame, the upper horizontal arm of said lever carrying a stop 45, and the lower vertical arm being pivotally connected with a reciprocatory lever 46 which passes through an opening 47 in one of the pedestals 2. The lever 44 is preferably so positioned 011 the back plate that the stop is substantially midway between the ends of the copyholder. The lever 46 carries a pin 48 which enters a slot 49, in what may be termed an adjustment defining plate 50. The lower edge of this plate is provided with a number of notches 51 adapted to be engaged by a portion 52 of the main frame work. It will thus be seen that reciprocation of the lever 46 and its plate 50, will act to raise and lower the stop 45, because of the pivotal movement imparted to the bell crank lever 44. When shifting any one of the notches 51 may be moved into engagement with the framework, thus predetermined positions of adjustment are provided. It is, however, most desirable that adjustment into positions intermediate the predetermined positions be provided, and, to efiect this, movement of the lever 46 relative to the plate 50 is caused by means of the following mechanism The lever 46 is provided at its outer end with a portion 53 bent at right angles, and the plate 50 is similarly provided with an angularly bent portion 54. The bent portion 5.3 is provided with a screw-threaded aperture, to receive a thumb screw 56, said thumb screw being swiveled in the bent portion 54 of the plate 50. It will be seen ,that the turning of the thumb screw when any one of the notches 51 is in engagement with the main framework, will cause the lever 46 to move relatively to the plate 50 and thus provide for an adjustment of the stop 45 into positions intermediate the pre determined positions defined by the notches 51. In this way an unlimited adjustn'ient of the copy feeding mechanism, within the limits of its range of moven'ient, may be attained. Secured to the inner face of the platen bar 36 is a stop 57, which when the sliding frame has traveled its full extent, strikes the stop 45 and thus limits the move ment of the copy feeding mechanism.

Another feature of the present invention is the provision of means for equalizing pressure of the clamping means, carried by the copy feeding mechanism, upon the copy at all points throughout its extent, and for accurately adjusting said pressure should it at any time become unequal. To effect this, one of the links 35, connecting the spacing keys 11 and 12 with the pivoted levers 32, is made adjustable, in the present instance the adjustment being obtained by means of a turnbuckle arrangement, illustrated in Figs. 2 to l inclusive. To maintain equal pressure upon the copy by the clamping means, it is essential that the movable member or presser bar 36, and the platen bar 37, be kept at all time in parallel relation. In the construction of clamping means, of the character shown, where links of ordinary type, such as is illustrated to the left in Fig. 1, are employed, it is exceedingly difiicult to equally adjust both end links and their connected parts, so that very frequently one portion of the presser bar is at a greater distance from the platen bar than the other portion. It will be obvious that when the key bar is depressed the pressure along the presser bar upon the copy will be uneven, thus rendering the copy liable to slip and become disarranged, so that alinement of the lines is destroyed. This and other disadvantages are overcome by making at least one of the connecting links 35 adjustable so that by simply screwing the turnbuckle the link may be lengthened or shortened to correspond with the other link should there be any inequality, due to bending and other causes, and the normal parallel relation between the two members constituting the clamping means obtained.

The operation of the improved copy holder as to placing copy therein and feeding the copy upward by the depression of the key lever is as follows: Assuming that one of the keys 25 or 26 has been moved into the position shown in Fig. 3, the swinging frame will have been turned to position the presser bar 36 above the indicator bar 5, and the platen bar 37 behind the indicator bar 5, thus providing a space through which the copy may be passed. In positioning the parts to receive copy, as the spacing key levers are connected by links with the levers on the sliding parts of the swinging frame, a slight depression of the spacing key levers will be effected, which movement has no bearing upon the operation, being merely an incident of construction. When pressure is removed from the key levers that move the swinging frame, the springs 24 will bring the parts to the position shown in Fig. 2, the roller bar 28, carried by the swinging frame, clamping the copy against the flat inner face of the indicator bar 5, the pressure being such as to admit of the paper or copy being moved in either direction by pulling the same either upward or downward to aline the copy. To move the copy a definite space the stop 45 is adjusted into the desired position in the manner indicated above, and when the key bar 14 is depressed, the first movement will I be to swing the lovers against the face of the copy to clamp the same against the face of the platen bar 37, the roller 28 being moved slightly rear Ward and away from the indicator bar by reason of the presser bar 36 exerting pressure upon the copy and the platen bar, which pressure is transmitted to the swinging frame that carries the roller 28. When the copy is released by the movement of the roller 28 and is clamped between the presser bar 36 and the platen bar 37, the sliding frame moves upward carrying the copy with it for a distance determined by the adjustment of the stop 45, and as soon as pressure is removed from the spacing keys the parts resume their normal position, as shown by Fig. 2, ready to have the operation repeated.

It will be noted that while I have shown and described a specific embodiment of my invention, the same is not to be limited in any way thereto, and is capable of variation and modification within the scope of the claims.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is,

1. In a copyholder, the combination of reciprocatory copy feeding mechanism, a stop for limiting the movement of the copy feeding mechanism and adjustable to a plurality of predetermined positions, and means for further adjusting said stop when in any one of said positions.

2. In a copy-holder, the combination of reciprocatory copy feeding mechanism, a stop for limiting the movement of the copy feeding mechanism, a lever adapted to shift the stop into a plurality of predetermined positions, and means operatively associated with said lever for adjusting the stop into positions intermediate said predetermined positions.

3. In a copy-holder, the combination of reciprocatory copy feeding mechanism, supporting means for said mechanism, a lever pivoted to said supporting means and carrying a stop for limiting the movement of said copy feeding mechanism, means for shifting said lever into a plurality of predetermined positions to adjust said stop and vary the range of movement of said copy feeding mechanism, and means for adjusting the stop into positions intermediate said predetermined positions.

4:. In a copy-holder, the combination of reciprocatory copy feeding mechanism, a stop for limiting the movement of said copy feeding mechanism, a lever device for shifting said stop into different positions of adjustment, an adjustment determining element operatively associated with said lever device, and means for changing the position of said lever device independently of the adjustment determining element.

5. In a copy-holder, the combination of reciprocatory copy feeding mechanism, supporting means for said mechanism, stop Copies of this patent may be obtained for reciprocatory copy feeding mechanism, a stop located substantially midway between the ends of said copy-holder to limit the movement of the copy feeding mechanism, and means for adjusting said stop to a plurality of predetermined positions, and also into positions intermediate said predetermined positions.

GEORGE A. MARSH. Witnesses R. S. MGKNIGHT, GARLAND P. Pnnn.

five cents each, by addressing the Commissioner of Patents, Washington. D. C 

